<template>
  <div class="todo-header">
    <input
      type="text"
      placeholder="请输入你的任务名称，按回车键确认"
      v-model.trim="val"
      @keyup.enter="handleipt"
    />
  </div>
</template>

<script>
import { defineComponent, ref } from "vue";
export default defineComponent({
  name: "Header",
  props: ["addtodo"],
  setup(props) {
    const val = ref("");
    function handleipt() {
      if (val.value == "") return alert("输入内容不能为空");
      props.addtodo(val.value);
      val.value = "";
    }
    return {
      val,
      handleipt,
    };
  },
});
</script>

<style lang="scss" scoped>
.todo-header input {
  width: 560px;
  height: 28px;
  font-size: 14px;
  border: 1px solid #ccc;
  border-radius: 4px;
  padding: 4px 7px;
  &:focus {
    outline: none;
    border-color: rgba(82, 168, 236, 0.8);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075),
      0 0 8px rgba(82, 168, 236, 0.6);
  }
}
</style>
